of new haven



V. H. WHITING Jan. 5 192%,

LOCK

Filed June 2Q, 1923 Patented Jan. 5, 1926.

UNITED STATES PATENT FFECE.

VICTOR H. WRITING, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO SARGENT & COM- PANY, OF NE'W HAVEN, CONNECTICUT.

LOCK.

Application led June 20, 1923. Serial N-o. 646,581.

Y all whom-t may concern.'

Be it known that l, VICTOR H. l/VHITING,

a citizen of the United States, residing in N ew Haven, county of New Haven, and State of Connecticut, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and eXact description.

This invention relates to locks, and more particularly to a new and improved method for securing a lock in position in a door or door amb.

1iiiflhen a lock is secured upon the outside of a door, it is necessary to secure it by some means` which may not be removed when the door is locked, to prevent the door being opened by an unauthorized person. Otherwise, theilock may be removed and the rollback or other part of the lock mechanism may be moved by the insertion of an instrument through theopening lett by the removalof the lock case, and the door thus opened. This is especially true with locks applied to the doors of automobiles having closed bodies, as the theftfocars of this character could often be prevented if' t-heV thie'f were vnot able to remove the lockV from the outside ofthe door. v i

One object `of myy invention is to provide a new and improved means of securing a lock case in position Vupon a door.V

Another object of my invention is to pro` vide means for securing a lock upon a door suoli that,.while a lock maybe applied to the door with facility. and without the expenditure of a great amountot1 labor, nevertheless, it will be impossible to remove it while the door is closed. y

To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

Y In the accompanying drawings;

Fig. 1 is a front elevational view of an automobile door having mounted thereon a lock embodying my improvements;

Fig. 2 is an edge view of the same;

Fig, 3 is a sectional view on line 3-3 of Fig. 2; 5

Fig. 4 is a side elevational vie'wof my 1mproved lock structure;

Fig. 5 is a rear view or" the same;

y Fig. 6 is asectionalview on line 6 6 of Fig. 5; and

Fig. 7 is a detail perspective view of the dust cap spring.

While l have shown my improvements as applied to an automobile door, it will be readily understood that the invention is not limited to this application, but, on the other hand, the improved lock mechanism shown 1s readily applicable to uses in other relations. In the drawings, I have shown, in a conventional way, an automobile body at 10 and the door at 11. The front edge of the door is rabbeted by the provision of the shoulder 12 which is adapted to contact with a part of the door jamb to hold the door tightly closed. Upon the inner edge of the door, a latch case 13 is mounted, and through the face plate ot' this case projects a latch bolt 14 which is adapted to be operated through suitable Amechanism (not shown) by means of the handle 15.

The door may be locked in closed position in any suitable manner such as by dead locking the latch bolt 14, and to this end I have mounted from the outer face of the door a lock case 15a provided with a spindle 16 which projects into the oase 13 and may there be suitably engaged with dogging mechanism forthe latch bolt 14. It will be understood that, of course, if desired, a dead bolt may be mounted in the case 13 to be thrown byv the rotation of the spindle 16. lhere the spindle is used to throw a dead bolt or to dead lock the latch bolt illustrated, anyV common form of mechanism may be employed, and as suoli mechanism is well known in the art and does not constitute a part of my invention, it is not necessary to illustrate it in detail.

The lock case 15il may comprise a face plate 16a, a cylinder 17 provided with a bore or opening in which is mounted a key barrel 18 and a pin tumbler vextension'19, which is usually integrally formed with the cylinder 17. The pin tumbler extension 19 is flattened at the sides, as shown at 19a and 19D and is provided with a number of openings or bores 20 in which are mounted the pin tumblers 21 which cooperate in the usual way with the pin tumblers 22 in the key barrel 18.

To the rear end of the key barrel 18 is secured an extension23 and to this eXtension ,is secured the spindle 16. The spinhold it in closed position.

part 23, so as to have universal movement relatively thereto in order to correct for inaccuracies in mounting the latch case` upon the door.

The face plate 16n is usually provided with openings 24 for the reception of screws to secure the lock case in position upon the door. As these screws are accessible from the outside of the door, it will be apparent that they may be easily removed, and, if the lock case is not secured by other means, the case itself may be removed and the door opened Vby any square instrument used in place of the spindle 1G. To prevent such removal of `the lock, l have provided a rearwardly extending portion 25 upon the rear end olf Athe pin tumbler extension lt), which is similar in cross sect-ion to the part it) and forms a continuation thereot. in order that a screw or the like may be passed through the edge ot the door and engage the lock case so as to secure it in position, l provide the part 25 with a recess or opening 2G which is, inthe form shown, threaded so that the threaded end of the screw 27 may take therein. It will, oi course, be understood that it may not al ways be necessary to thread the opening 26, for if the screw 27 is threaded into the wood of the door, the mere entrance of the screw into the opening will prevent the removal of the lock, regardless of whether or not it has a threaded connection therewith. It will likewise be understood that it will not always be necessary to form the opening 2 entirely through the part 25 of the lock case, but it may sometimes only be desirable to have a recess formed therein so that a shoulder willr be provided rearwardly of the screw 27 to engage the screw in case an attempt is made to withdraw the lock :trom the door. I find, howevr, that a screw entering an opening in the lock case in this manner holds the case ,in position in the door positively and seeur-ely.

he lock case is provided with a hinged dust cap 29, and a spring 30 is provided to hold the dust cap either in open position as shown in the figures of the drawing, or in closed position when the key is re-V moved from the key hole. The spring 30 is, in the form shown, a leaf spring turned doubled so as to be substantially aped in form, its free end 3l being nipt-ed to engage the edge 32 oit a tail piece on the dust ap 29. lVhen the dust rap closed, the spring engages against the side il oi the tail of the dust cap to of the spring is bent transversely to the body thereof, as shown at 34, and is insert@ ed in a slot or kerfB in the front portion ot' the pin tumbler extension 19. It will he apparent that the tension ot the spring The other end tends to hold the end Si in position in the slot so that it does not need to be secured therein, and it the spring becomes broken, it a comparatively easy task to remove it and replace it with another, without the use of any .special tools.

The dust cap 29 may be hinged to thelock case by having the tail piece thereof mounted in the notch 36 at the upper part oi. the tace plate 16 and a in 37 passed through the face plate and tlie tail piece.

By providing the extension 25 upon the part of the lock case which contains the pin tumblers, I am enabled to arrange for the insertion ot the screw 27 in the edge of the door rearwardly of the shoulder l2 so that a shorter screw may be inserted. lt will, oit course, be evident that this extension may be made longer or shorter, as desired, without interfering in any way with the position oi` the tumblers 2l, so. that no change oi keys would be necessary when the lock is applied to doors ot difterent thicknesses.

lVhile I have shown and described a preferred embodiment of my invention, it will be understood that it `is not to be limited to all the details shown, but is ca abley of modification and variation within tiies irit of the invention and within the scope o the appended claims.

lVhat I- claim is:

1. A cylinder lock adapted to be mounted in a door, said lock having a case provided with a recess, and; a member inserted through the edge of the door and entering said re,- cess to secure the lock in position.

2. A lock case having a flattenedy portion and adapted` to be mounted in aK seat in a door, and a fastening screw secured, in the door at right angles to the axisof theloek case, said flat-tened portion being provided with means to engagethe` rear side of theM screw to hold the lock case in place.

3. In combination with a door, a lockcase mounted therein from one sidethereof a fastening screw inserted into the edge` of the door and arranged to have itsend take into they lock case to secure the latter in place.

et. In combination with a door, a lock case mounted therein from one side thereof, a fastening screw inserted into the edge ofthe door, and said lock case being provided with means to receive t-he end of said screw to hold the lock in place.

5. Ineombination with a door, a cylinder lock mounted therein having a` pin tumblerA extension and tumblers mounted in said' eX- tension, a screw inserted through the edge of the door at right angles to the lock axis, said extension being provided with means to embrace the end of the screw to secure the loch in place.

G. In combination with a door, a lock u mi),

mounted on the face of the door provided with a lock case having a pin tumbler extension and tuinblers mounted therein, said extension being provided with an opening rearwardly of the tumblers and a fastening member inserted through the edge of the door and received in said opening.

7. In combination, a door, a lock mounted thereon, a transverse opening in said lock case, and a fastening member inserted through the edge of the door and received in said opening to secure the lock in place.

8. In combination, a door, a lock case inserted therein from the face thereof, and a member inserted through and secured in the edge of the door and having its end in engagement with the lock case to prevent the withdrawal thereof from the door in an axial direction.

9. In combination, a door having an opening in the face thereof, a lock case inserted axially in said opening, a fastening member inserted through and threaded in the edge of the door, and means on the lock case disposed rearwardly of the fastening member to engage the end thereof and prevent removal of the lock case.

10. In combination, a door, a lock case mounted therein, said case being provided with a rearward extension, a fastening screw inserted through the edge of the door at right angles to the axis of the lock case and engaging said extension to secure the case in place.

ll. In combination, a door, a lock case mounted within an opening at one side of the door, said case being provided with a rearward extension, a fastening member secured in the door through the edge thereof, said extension being provided with an opening to receive said fastening member.

l2. In a door lock, a case provided with a pin tumbler extension, said extension be ing itself extended rearwardly and provided with a transversely disposed opening.

13. In a door lock, a case provided with a pin tumbler extension, said extension being itself extended rearwardly and provided with a transversely disposed opening, and a screw inserted through the edge of the door in which the lock is mounted and adapted to take into said opening.

In witness whereof, I have hereunto set my hand this 4th day of June, 1923.

VICTOR H. VHITING. 

